How to solve ProGuard errors: can’t find referenced class javax.crypto.Cipher
You are getting the following errors when using ProGuard to obfuscate your jar library, which uses classes in the javax.crypto.* package:
[proguard] Warning: com.bytenota.crypto.AESEncryption: can't find referenced class javax.crypto.Cipher
[proguard] Warning: com.bytenota.crypto.AESEncryption: can't find referenced class javax.crypto.spec.SecretKeySpec
[proguard] Warning: com.bytenota.crypto.AESEncryption: can't find referenced class javax.crypto.spec.IvParameterSpec
To solve this errors, you need to specify the jce.jar in your ProGuard configuration.
obfuscation.pro
-libraryjars <java.home>/lib/jce.jar
Yeah, that is it.